Wednesday 26 September 2018

Gen4 Super Ion Air Knives Remove Pesky Dust from Crepe Paper Manufacturing Process

A paper manufacturer was having issues with their measuring equipment (reference photo below).  They were producing 6” (152mm) wide crepe paper which is very thin and dusty.  As it would pass through the machine, a real-time measurement of basis weight and moisture content was being performed.  The basis weight of the sheet was around 14g/m2 which is like facial tissue.  The machine was giving false errors in the basis weight measurement.  As they opened the device, they noticed dust particles on the optical lens.  Because the basis weight was so small, any dust would cause a false reading.  They contacted EXAIR to see if they could help with their problem.

With a dry fibrous material like crepe paper, static can be a big issue.  Static has a strong force that can cause small fragments to “stick” to surfaces.  As you can see in the photo, the paper material is sticking to the sides and lens of the measuring device.  For this application,  Exair's Application Engineer recommended two pieces of the model 112206 Gen4 Super Ion Air Knife Kits.  The Gen4 Super Ion Air Knife is uniquely designed to have two functions; remove static and blow off dust.  The Gen4 Ionizing Bar creates both positive and negative ions to remove any type of static charge.  The Super Air Knife creates a laminar air stream to carry the ions and also generate an even blowing force to remove the dust particles from the surface.  With this combination, it becomes a very effective non-contact way to remove the contamination.  This was an important requirement as the crepe paper is very thin and could break very easily.  They were able to mount one Super Ion Air Knife above and below the paper in order to blow the dust particles in a counter-flow direction.  This would keep the particles from entering the measurement device.

The Super Ion Air Knife Kit includes the Super Air Knife with a Gen4 Ionizing Bar attached.  The kit also includes a power supply, filter, regulator, and a shim set.  The power supply is specifically designed for the Gen4 Static Eliminators.  The Gen4 Super Ion Air Knives use the high voltage from the power supply to generate enough ions to remove static from the paper at a running speed of 49.5 ft/sec (15m/sec).  The filter will remove any contamination and liquid water from the compressed air system before it enters the Super Ion Air Knife.  This is important to keep the product clean.  The shim set is a set of three different shims with a thickness of 0.001” (0.025mm), 0.003” (0.076mm), and 0.004” (0.1mm).  They are used to dramatically change the blowing force from the stock shim at 0.002” (0.05mm) thick.  Being that the paper was extremely thin, they opted to put the 0.001 (0.025m) thick shim inside the Super Ion Air Knife.  With the regulator in the kit, the customer could “dial” in the correct amount of force to keep the machine running optimally without breaking the delicate paper.
When the customer installed the Gen4 Super Ion Air Knives just before the entrance into the measuring device, the air stream was able to carry the ions to neutralize the static and to remove the dust from the paper surface.  The system was now able to make accurate measurements without disruptions.
If your industry is needing such type of problem or any other static charge problem  then kindly contact us in below provided contact details and we are having a wide range of Exair Static Eliminator products.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 4170 1145
E- mail :[email protected] [email protected] , [email protected]

Friday 7 September 2018

Selecting The Right Safety Air Gun

Exair provides five Safety Air Guns such as VariBlast™, Soft Grip, Heavy Duty , Back Blow and Super Blast. Safety Air Guns are available with a variety of air nozzles (listed in order of force). Stainless steel air nozzles provide more mechanical wear resistance while withstanding corrosion and high temperatures. PEEK Air Nozzles provide protection from accidental impact with the target and outstanding corrosion resistance. Air consumption, force and sound level are shown for all models.

VariBlast™ Compact Safety Air Gun is a uniquely powerful gun which produces variable force depending on trigger valve pressure. You decide how much force is needed for the application by squeezing the trigger a little or all the way for maximum force! Th is cast aluminum gun is equipped with any of our 1/8 NPT engineered air nozzles. Th e VariBlast Compact Safety Air Gun is small, comfortable and powerful while remaining light and ergonomic. Has two inlets for flexible air supply. Extension Pipes for hard to reach areas are also available.

Back Blow Safety Air Gun is perfect for cleaning out the inside of pipe, tube, hose or channels. EXAIR’s engineered back blow nozzle provides a powerful 360 degree airflow through an array of holes to remove coolant, chips or debris. Available in our VariBlast, Soft Grip, Heavy Duty or Super Blast version, each gun style can be outfitted with an up to 72" extension to reach far into your application and provide airflow. VariBlast, Soft Grip and Heavy Duty Back Blow Safety Air Guns are outfitted with a Chip Shield to protect the operator from flying debris. Since airflow is directed back toward the operator, personal protection equipment is recommended.
Soft Grip Safety Air Gun has a durable cast aluminum body that is suited for rugged industrial use. Th e ergonomic design has a large trigger for easy operation and a convenient hanger hook for easy storage. Chip Shields for worker safety are available. Extension Pipes and Stay Set Hoses for hard to reach areas are also available.
Heavy Duty Safety Air Gun is a powerful air gun with a durable cast aluminum body that is best suited for heavy use in rugged industrial environments. The ergonomic composite rubber grip and wide curved trigger can be used for hours without fatigue. Chip Shields for worker safety are available. Extension Pipes for hard to reach areas are also available.
Super Blast Safety Air Guns provide the strongest blowing force - ideal for long distance, wide
area blowoff , cooling, and drying applications. The comfortable foam rubber handle provides
a firm grip. Th e spring-loaded valve instantly shuts off the air supply if the air gun is dropped.
Extension Pipes for hard to reach areas are also available.